Journal
ESTUARINE COASTAL AND SHELF SCIENCE
Volume 174, Issue -, Pages 65-70Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ecss.2016.03.014
Keywords
Intraspecific relationships; Intertidal; Management; Population dynamics; Restoration
Categories
Funding
- ALGMARBIO project
- InitiativeBioBretagne (IBB)
- FranceAgriMer
- Brittany Regional Council
- Cote d'Armor Departmental Council
- European Fisheries Fund (EFF)
- French Government run by the National Research Agency
- programme IDEALG [ANR-10-BTBR-04]
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Through experimental harvesting, followed by a 12-month monitoring of demographic attributes, we tested the influence of harvesting on the population dynamics of Himanthalia elongata. We further explore the data to test the hypothesis that the canopy would exert a negative effect on the other developmental stages (intraspecific competition) throughout the recovery cycle of the population. This showed that the H. elongata canopy plays a marked seasonal role not by precluding the presence of other developmental stages but by delaying or preventing their growth and development. The removal of the canopy facilitates the transition from one developmental stage to another, eventually permitting a fast recovery of size structure in the population. This study allows us to integrate population dynamics and intraspecific relationships in our understanding of macroalgal recovery patterns. (C) 2016 Elsevier Ltd. All rights reserved.
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